{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "Our study reports on the total mercury ( HgT ) concentrations measured in the muscles and livers of several benthic , demersal and pelagic fish species caught inside and outside of Augusta Bay ( southern Italy ) , a semi - enclosed marine area , highly contaminated by the uncontrolled ( since the 1950s to 1978s ) discharge of the largest European petrochemical plant ."}
{"Chemical": ["mercury"]}